ALEXANDER, CRANE FLIES FR. S. CHILE & TIERRA D. FUEGO. 31 



the tips broadly dark brown; tibiee similar, the tips narrowly 

 darkened; tarse dark brown; legs slender. Wings rather 

 dark brown; stigma darker brown; subcostal cell with two 

 large blotches and the tip dark brown, these larger blotches 

 as extensive as the påle interspace between them; a rather 

 narrow but very clear-cut band of whitish hyaline beyond 

 the stigma, continued caudad and including cell 2st M2 and 

 the extreme base of cell Mi\ outer third of cell R5 similar; 

 a large whitish area before the stigma, lying about midlength 

 of Rs which it traverses; a somewhat similar area in the 

 basal cells beyond midlength. 



Abdominal tergites dull brownish yellow, trivittate with 

 dark brown, the lateral stripes darker, complete, the median 

 stripe narrowly interrupted at the bases of the segments, 

 paler brown; subterminal segments of abdomen not conspi- 

 cuously darkened. Male hypopygium similar to that of T. 

 glaphyroptera. T, patagonica, and allies. Ninth tergite about 

 as in T. patagonica, but the apical points more widely sepa- 

 rated. Outer pleural appendage long and slender, nearly 

 cylindrical throughout its length; ninth pleurite with the 

 ventral caudal arm terminating in long yellowish hairs that 

 are nearly as long as the arm itself; immediately dorsad of 

 these a dark-coloured hemispherical lobe, covered with an 

 abundant silvery pubescence and with a pencil of stiff yel- 

 low hairs that are directed dorsad. Eighth sternite (plate 1, 

 fig. 9) with the median appendage very large, bifid by a 

 profound median split, the median lobe that is found in T. 

 patagonica and T. fuegiensis being here represented only be a 

 vestige at the base of the incision; lobes tapering gradually 

 to the obtuse tips. 



Hdbitat. — Chile. 



Holotype, J*, Rio Aysén (P. Dusen). 



Paratopotypes, 2 J*'s. 



Type in the Riksmuseum in Stockhom. 



Compared with a Chilian specimen that agrees well with 

 Philippi's rather brief description of T. glaphyroptera, the 

 present species differs in the much heavier pattern of the 

 wings and thorax. 



